prosody
a82268d507fc
util/set.lua

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util/set.lua @ 1030:a82268d507fc

util.set: Add set.xor() to get a set consisting of items not in both sets
author Matthew Wild <mwild1@gmail.com>
date Wed, 22 Apr 2009 18:03:42 +0100
parent 1029:4ead03974759
child 1522:569d58d21612
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1029:4ead03974759 1030:a82268d507fc
139 end 139 end
140 140
141 return set; 141 return set;
142 end 142 end
143 143
144 function xor(set1, set2)
145 return union(set1, set2) - intersection(set1, set2);
146 end
147
144 return _M; 148 return _M;